Antifungal activity of oregano na rast Fusarium i Penicillium vrsta izolovanih iz hrane

The effect of the oregano extract (Origanum vulgare L.) on the growth of Fusarium and Penicillium species isolated from cakes and ready-for-use fresh salads from different kinds of vegetables was investigated. The contents of the active component of extract were identified by GC-MS and they include:...

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Veröffentlicht in:Hemijska industrija 2012-01, Vol.66 (1), p.33
Hauptverfasser: Kocic-Tanackov, Suncica D, Dimic, Gordana R, Tanackov, Ilija J, Pejin, Dusanka J, Mojovic, Ljiljana V, Pejin, Jelena D
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Sprache:eng
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Zusammenfassung:The effect of the oregano extract (Origanum vulgare L.) on the growth of Fusarium and Penicillium species isolated from cakes and ready-for-use fresh salads from different kinds of vegetables was investigated. The contents of the active component of extract were identified by GC-MS and they include: carvacrol (34.2%), carvone (18.5%), p-cimene (8.05%), thymol (3.74%). The oregano extract showed the ability to reduce mould growth at all applied concentrations. Stronger inhibitory effect on the growth of Penicillium species, contrary to Fusarium, was determined. At extract concentration of 2.50 mL/100 mL, growth of P. aurantiogriseum, P. glabrum and P. brevicompactum was completely inhibited during 14 days of incubation. At the same concentration, growth of Fusarium proliferatum was inhibited by 81.71%, F. oxysporum by 85.84%, F. verticillioides by 86.50%, P. chrysogenum by 86.2% and F. subglutinans by 88.85%. Keywords: Oregano extract; antifungal activity; Fusarium spp.; Penicillium spp. U radu je prikazan uticaj ekstrakta origana (Origanum vulgare L.) na rast Fusarium i Penicillium vrsta izolovanih iz kolaca i salata od svezeg povrca. Antifungalna ispitivanja su izvedena metodom agar ploca. Sastav aktivnih komponenti ekstrakta je odreden GC-MS metodom i kao glavne komponente ustanovljene su: karvakrol (34,2%), karvon (18,5%) i p-cimen (8,05%). Ispitivani ekstrakt je na svim primenjenim koncentracijama pokazao sposobnost redukcije rasta plesni. Jaci inhibitorni efekat je utvrden na rast Penicillium vrsta. Pri koncentraciji od 2,50 mL/ /100 mL ekstrakta rast P. aurantiogriseum, P. glabrum i P. brevicompactum je kompletno inhibiran tokom 14 dana inkubiranja. Pri istoj koncentraciji rast F. proliferatum je inhibiran za 81,71%, F. oxysporum za 85,84%, F. verticillioides za 86,50%, P. chrysogenum za 86,2% i F. subglutinans za 88,85%. Ispitivani zacinski ekstrakt origana je pored ogranicavanja rasta kolonija plesni uzrokovao i promene u makro- i mikromorfologiji. Pri visim koncentracijama (1,50 i 2,50 mL/100 mL) doslo je do formiranja nekarakteristicnih, kolonija sa izdignutim centrom, zrnaste strukture i smanjenom konidijacijom (P. brevicompactum, P. chrysogenum, F. oxysporum). Takode, na ovim koncentracijama su u mikroskopskom preparatu uocene deformacije hifa (sa cestom fragmentacijom i zadebljanjima, ugibanje) i reproduktivnih organa (vezikule nepravilnog oblika, cesto bez metula i fijalida, pojava proSirenih metula, deformacija monofijalida) ili bez reproukt
ISSN:0367-598X
DOI:10.2298/HEMIND110614073K